> ## Documentation Index > Fetch the complete documentation index at: https://help.jetpack3pl.com/llms.txt > Use this file to discover all available pages before exploring further. # Package Size and Weight Policies > Learn how Jetpack's packaging algorithm works, what situations are ineligible for packaging error credits, and how to submit and evaluate packaging error disputes.
Jetpack employs a sophisticated packaging algorithm that selects the optimal container for each order based on product dimensions. This guide explains how the packaging selection process works, why the smallest container isn't always chosen, and the procedures for submitting and evaluating packaging error disputes.
## Why Optimal Packaging May Not Always Be Selected Jetpack employs a sophisticated algorithm that assesses the length, width, and height of each item to determine the best packaging fit, whether that be a poly mailer, box, or bubble mailer. Due to the unique properties of some items, the algorithm may occasionally select a container that isn't the smallest possible option. You can read more about our packaging selection process in the [detailed packaging preferences guide](/fulfillment/account-setup/shipping-preferences/packaging-preferences). *** ## Understanding Packaging Error Credits Jetpack strives to choose the smallest available packaging size based on your preferences while ensuring your products remain safe during transit. If an error occurs and a larger container is used, you may be eligible for a refund of the difference in the fulfillment cost, provided the order meets the criteria for a packaging error credit. Not all instances where a larger container is used will qualify for a credit. The following situations are not eligible for reimbursement after a packaging fit check. ### Situations Ineligible for Packaging Error Credits | Situation | Description | | ---------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **High-Quantity Orders** | Orders containing more than 50 units | | **Nestable Items** | Products that can be nested inside one another (e.g., baseball caps, hats, plastic bowls) | | **Compressible Items** | Items that can compress and fit into smaller cartons (e.g., plush toys, fluffy blankets)

If you ship highly compressible items, please use Slack or email | | **Uniquely Shaped Items** | Products that are spherical, interlocking, or substantially different from standard rectangular shapes (e.g., bath bombs, sauce bottles) | | **Packaging Preference Errors** | Occurs when the packaging requirements are incorrectly set in the Jetpack dashboard (e.g., selecting a box instead of a poly mailer, resulting in larger dimensions and increased costs) | | **Split Orders** | Orders that are split into multiple shipments either automatically or by merchant action | | **Inability to Provide Weight and Dimensions** | Jetpack will not provide credits to your Jetpack account if you suspect that larger-than-necessary packaging was used and you cannot provide weight and dimension of the product. Jetpack will continue to use available data to pick the smallest possible packaging | | **Difficult-to-Fit Items** | Products that only fit in the provided packaging when placed diagonally or require the packaging to be stretched | *** ## How to Submit a Packaging Dispute If you believe an order was packaged incorrectly, email Jetpack Care. Please include the following information in your dispute: **Order ID(s):** Provide the order number(s) you believe were affected. * Only submit one Order ID for each unique combination of SKUs/units * If multiple orders share the same SKU combination within the past 90 days, one ID is sufficient **Suggested Packaging Details:** Specify the packaging type and size you believe should have been used. Refer to the [standard packaging guide](/fulfillment/d2c/standard-packaging) for details. Note: Jetpack can only evaluate a packaging dispute if all impacted SKUs are physically available at the fulfillment center that processed the order. *** ## Packaging Dispute Evaluation Process Upon receiving your packaging dispute, Jetpack's Operations team will conduct a packaging fit check at the fulfillment center for each unique order combination provided. The process includes: | Evaluation Step | Details | | ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Fit Check** | | | **Order Review** | If the items fit in the suggested packaging and the issue is not covered under the ineligible cases, all orders with the same SKU/unit combination from the past 90 days will be reviewed | | **Documentation** | | *** ## Eligibility Criteria for Packaging Error Credits To qualify for a packaging error credit (which will be applied to your Jetpack account), the following criteria must be met: | Criterion | Requirement | | ----------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | **Timing** | The order must have been shipped within 90 days of your notification | | **Item Availability** | All items (or an acceptable variant that only differs by color, scent, etc.) must be available in the warehouse | | **Weight Discrepancy** | | | **Dimension Discrepancy** | The recorded length, width, or height for one or more items within the order exceeds the actual measurement by more than 0.5 inches (1.27 cm) | | **Packer Errors** | Errors such as typos in packaging dimensions, using an incorrect box due to a stockout | | **Implementation Team Error** | Errors by the implementation team during setup of adding custom boxes to Jetpack's algorithm | For further details on operational error policies, please refer to our [operational errors policy](/fulfillment/operational-policies). *** ## Let's Dive Deeper Understand how dimensional weight affects shipping costs Configure your packaging options and preferences Learn about error handling and resolution procedures Learn how to package fragile products safely Explore Jetpack's standard packaging options Back to the main tools guide
Questions? Contact Jetpack Care.
If you have any questions or run into issues, you can always contact Jetpack Care for help. Our team is always here to assist via Slack, phone, or email!